Teacher

package pack1;

public abstract class Teacher {
    protected int teacherId;
    public int subjectId;

    public Teacher(int teacherId, int subjectId){
        this.teacherId = teacherId;
        this.subjectId = subjectId;
    }

    protected abstract void setTeacherId(int teacherId);
    protected abstract int getTeacherId();
    public abstract void setSubjectId(int subjectId);
    public abstract int getSubjectId();
}